Login 类

The Login object represents a SQL Server login account that has been granted access to the instance of SQL Server through Windows Authentication or SQL Server Authentication.

继承层次结构

System.Object
  Microsoft.SqlServer.Management.Smo.SmoObjectBase
    Microsoft.SqlServer.Management.Smo.SqlSmoObject
      Microsoft.SqlServer.Management.Smo.NamedSmoObject
        Microsoft.SqlServer.Management.Smo.ScriptNameObjectBase
          Microsoft.SqlServer.Management.Smo.Login

命名空间：  Microsoft.SqlServer.Management.Smo
程序集：  Microsoft.SqlServer.Smo（在 Microsoft.SqlServer.Smo.dll 中）

语法

声明
<PhysicalFacetAttribute> _
<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)> _
Public NotInheritable Class Login _
    Inherits ScriptNameObjectBase _
    Implements ISfcSupportsDesignMode, IObjectPermission, ICreatable, IAlterable,  _
    IDroppable, IRenamable, IScriptable, ILoginOptions, IDmfFacet
用法
Dim instance As Login

[PhysicalFacetAttribute]
[EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)]
public sealed class Login : ScriptNameObjectBase, 
    ISfcSupportsDesignMode, IObjectPermission, ICreatable, IAlterable, IDroppable, 
    IRenamable, IScriptable, ILoginOptions, IDmfFacet

[PhysicalFacetAttribute]
[EvaluationModeAttribute(AutomatedPolicyEvaluationMode::CheckOnSchedule)]
public ref class Login sealed : public ScriptNameObjectBase, 
    ISfcSupportsDesignMode, IObjectPermission, ICreatable, IAlterable, IDroppable, 
    IRenamable, IScriptable, ILoginOptions, IDmfFacet

[<SealedAttribute>]
[<PhysicalFacetAttribute>]
[<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)>]
type Login =  
    class 
        inherit ScriptNameObjectBase 
        interface ISfcSupportsDesignMode 
        interface IObjectPermission 
        interface ICreatable 
        interface IAlterable 
        interface IDroppable 
        interface IRenamable 
        interface IScriptable 
        interface ILoginOptions 
        interface IDmfFacet 
    end

public final class Login extends ScriptNameObjectBase implements ISfcSupportsDesignMode, IObjectPermission, ICreatable, IAlterable, IDroppable, IRenamable, IScriptable, ILoginOptions, IDmfFacet

Login 类型公开以下成员。

构造函数

	名称	说明
	Login()	Initializes a new instance of the Login class.
	Login(Server, String)	Initializes a new instance of the Login class on the specified instance of SQL Server and with the specified name.

页首

属性

	名称	说明
	AsymmetricKey	Gets the asymmetric key associated with the login.
	Certificate	Gets the certificate associated with the login.
	CreateDate	Gets the date and time when the login account was created.
	Credential	Gets the credential associated with the login.
	DateLastModified	Gets the date and time when the login account was last modified.
	DefaultDatabase	Gets or sets the default database that the login account is assigned to after logging on to the instance of SQL Server.
	DenyWindowsLogin	Gets or sets the Boolean property value that specifies whether the login account has been granted or denied the ability to log on to the instance of SQL Server.
	Events	Gets the events associated with the login account.
	HasAccess	Gets or sets the Boolean property value that specifies whether the SQL Server login account has access to the instance of SQL Server.
	ID	Gets the ID value that uniquely identifies the login account.
	IsDisabled	Gets or sets the Boolean property value that specifies whether the SQL Server login account is disabled.
	IsLocked	Gets the Boolean property value that specifies whether the login account has been locked out of the instance of SQL Server.
	IsPasswordExpired	Gets the Boolean property value that specifies whether the password for the SQL Server login account has expired.
	IsSystemObject	Gets or sets the Boolean property value that specifies whether the SQL Server login account is a system object.
	Language	Gets or sets the language required by the referenced login account for date formats and system messages.
	LanguageAlias	Gets the alias name used for the language that is required by the SQL Server login account.
	LoginType	Gets or sets the type of SQL Server login account.
	MustChangePassword	Gets the Boolean property value that specifies whether the login account password must be changed when the user next logs on to the instance of SQL Server.
	Name	Gets or sets the name of the login. （覆盖 NamedSmoObject.Name。）
	Parent	Gets the Server object that is the parent of the Login object.
	PasswordExpirationEnabled	Gets the Boolean property value that specifies whether the password for the login account will automatically expire.
	PasswordHashAlgorithm	Gets or sets the hash algorithm used for the password.
	PasswordPolicyEnforced	Gets the Boolean property value that specifies whether password policy is enforced for this login account.
	Properties	Gets a collection of Property objects that represent the object properties. （从 SqlSmoObject 继承。）
	Sid	Gets or sets the security identifier (SID) for the login account.
	State	Gets the state of the referenced object. （从 SmoObjectBase 继承。）
	Urn	Gets the Uniform Resource Name (URN) address value that uniquely identifies the object. （从 SqlSmoObject 继承。）
	UserData	Gets or sets user-defined data associated with the referenced object. （从 SmoObjectBase 继承。）
	WindowsLoginAccessType	Gets the type of Windows logon access.

页首

方法

	名称	说明
	AddCredential	Adds a login credential.
	AddToRole	Adds the login account to a SQL Server role.
	Alter	Updates any Login object property changes on the login account on the instance of SQL Server.
	ChangePassword(String)	Changes the password for the login account.
	ChangePassword(String, String)	Changes the password for the login account.
	ChangePassword(String, Boolean, Boolean)	Changes the password for the login account.
	Create()	Creates a login account on the instance of SQL Server as defined by the Login object.
	Create(SecureString)	Creates a login account on the instance of SQL Server as defined by the Login object.
	Create(String)	Creates a login account on the instance of SQL Server as defined by the Login object.
	Create(SecureString, LoginCreateOptions)	Creates a login account on the instance of SQL Server as defined by the Login object.
	Create(String, LoginCreateOptions)	Creates a login account on the instance of SQL Server as defined by the Login object.
	Deny(ObjectPermissionSet, String)	Denies the specified set of permissions for the specified grantee on the login account.
	Deny(ObjectPermissionSet, array<String[])	Denies the specified set of permissions for the specified grantees on the logon.
	Deny(ObjectPermissionSet, String, Boolean)	Denies the specified set of permissions for the specified grantee and other users that the grantee granted the specified set of permissions on the logon.
	Deny(ObjectPermissionSet, array<String[], Boolean)	Denies the specified set of permissions for the specified grantees and other users that the grantee granted the specified set of permissions on the logon.
	Disable	Disables the login account.
	Discover	Discovers a list of type Object. （从 SqlSmoObject 继承。）
	Drop	Removes the login account from the instance of SQL Server.
	DropCredential	Drops a login credential.
	Enable	Enables the login account.
	EnumAgentProxyAccounts	Enumerates a list of agent proxy accounts in which the login account is participating.
	EnumCredentials	Returns a string collection of credentials associated with a login.
	EnumDatabaseMappings	Enumerates a list of login account mappings to databases and database users.
	EnumObjectPermissions()	Enumerates a list of object permissions for the login account.
	EnumObjectPermissions(String)	Enumerates a list of object permissions for a specified grantee on the login account.
	EnumObjectPermissions(ObjectPermissionSet)	Enumerates a list of object permissions for a specified permission on the login account.
	EnumObjectPermissions(String, ObjectPermissionSet)	Enumerates a list of object permissions for a specified grantee and a specified permission on the login account.
	Equals	（从 Object 继承。）
	FormatSqlVariant	Formats an object as SqlVariant type. （从 SqlSmoObject 继承。）
	GetContextDB	Gets the context database that is associated with this object. （从 SqlSmoObject 继承。）
	GetDatabaseUser	Gets the name of the user that the login account is mapped to in a specified database.
	GetDBName	Gets the database name that is associated with the object. （从 SqlSmoObject 继承。）
	GetHashCode	（从 Object 继承。）
	GetPropValue	Gets a property value of the SqlSmoObject object. （从 SqlSmoObject 继承。）
	GetPropValueOptional	Gets a property value of the SqlSmoObject object. （从 SqlSmoObject 继承。）
	GetPropValueOptionalAllowNull	Gets a property value of the SqlSmoObject object. （从 SqlSmoObject 继承。）
	GetServerObject	Gets the server of the SqlSmoObject object. （从 SqlSmoObject 继承。）
	GetType	（从 Object 继承。）
	Grant(ObjectPermissionSet, String)	Grants the specified set of permissions to the specified grantee on the login account.
	Grant(ObjectPermissionSet, array<String[])	Grants the specified set of permissions to the specified grantees on the login account.
	Grant(ObjectPermissionSet, String, Boolean)	Grants access to the specified permission to the grantee and the ability to grant access to other users on the login account.
	Grant(ObjectPermissionSet, array<String[], Boolean)	Grants access to the specified permission to the grantees and the ability to grant access to other users on the login account.
	Grant(ObjectPermissionSet, String, Boolean, String)	Grants the specified set of permissions to the grantee and the ability to grant the set of permissions to other users on the login account under an assumed role.
	Grant(ObjectPermissionSet, array<String[], Boolean, String)	Grants the specified set of permissions to the grantees and the ability to grant the set of permissions to other users on the logon under an assumed role.
	Initialize()	Initializes the object and forces the properties be loaded. （从 SqlSmoObject 继承。）
	Initialize(Boolean)	Initializes the object and forces the properties be loaded. （从 SqlSmoObject 继承。）
	IsMember	Returns a Boolean value that specifies whether the login account is a member of a specified role.
	IsObjectInitialized	Verifies whether the object has been initialized. （从 SqlSmoObject 继承。）
	IsObjectInSpace	Verifies whether the object is isolated or connected to the instance of SQL Server. （从 SqlSmoObject 继承。）
	ListMembers	Returns a list of the roles of which the login account is a member.
	Refresh	Refreshes the login credentials. （覆盖 ScriptNameObjectBase.Refresh()。）
	Rename	Renames the login account.
	Revoke(ObjectPermissionSet, String)	Revokes a previously granted set of permissions from a grantee on the login account.
	Revoke(ObjectPermissionSet, array<String[])	Revokes a previously granted set of permissions from a list of grantees on the login account.
	Revoke(ObjectPermissionSet, String, Boolean, Boolean)	Revokes previously granted permissions from a grantee on the login account and any other users to whom the grantee has granted the specified set of permissions. The grantee is also given the ability to revoke the specified set of permissions from other users under an assumed role.
	Revoke(ObjectPermissionSet, array<String[], Boolean, Boolean)	Revokes previously granted permissions from grantees on the login account and any other users to whom the grantees have granted the specified set of permissions. The grantees are also given the ability to revoke the specified set of permissions from other users under an assumed role.
	Revoke(ObjectPermissionSet, String, Boolean, Boolean, String)	Revokes previously granted permissions from a grantee on the login account and any other users to whom the grantee has granted the specified set of permissions. The grantee is also given the ability to revoke the specified set of permissions from other users under an assumed role.
	Revoke(ObjectPermissionSet, array<String[], Boolean, Boolean, String)	Revokes previously granted permissions from grantees on the login account and any other users to whom the grantees have granted the specified set of permissions. The grantees are also given the ability to revoke the specified set of permissions from other users under an assumed role.
	Script()	Generates a Transact-SQL script that can be used to re-create the login account.
	Script(ScriptingOptions)	Generates a Transact-SQL script that can be used to re-create the login account as specified by the script options.
	SetParentImpl	Sets the parent of the SqlSmoObject to the newParent parameter. （从 SqlSmoObject 继承。）
	ToString	Returns a String that represents the referenced object. （从 SqlSmoObject 继承。）
	Validate	Validates the state of an object. （从 SmoObjectBase 继承。）

页首

事件

	名称	说明
	PropertyChanged	Represents the event that occurs when a property is changed. （从 SqlSmoObject 继承。）
	PropertyMetadataChanged	Represents the event that occurs when property metadata changes. （从 SqlSmoObject 继承。）

页首

显式接口实现

	名称	说明
	IAlienObject.Discover	Discovers any dependencies. 不要在您的代码中直接引用此成员。它支持 SQL Server 基础结构。 （从 SqlSmoObject 继承。）
	IAlienObject.GetDomainRoot	Returns the root of the domain. （从 SqlSmoObject 继承。）
	IAlienObject.GetParent	Gets the parent of this object. 不要在您的代码中直接引用此成员。它支持 SQL Server 基础结构。 （从 SqlSmoObject 继承。）
	IAlienObject.GetPropertyType	Gets the type of the specified property. （从 SqlSmoObject 继承。）
	IAlienObject.GetPropertyValue	Gets the value of the specified property. （从 SqlSmoObject 继承。）
	IAlienObject.GetUrn	Gets the Unified Resource Name (URN) of the object. 不要在您的代码中直接引用此成员。它支持 SQL Server 基础结构。 （从 SqlSmoObject 继承。）
	IAlienObject.Resolve	Gets the instance that contains the information about the object from the Unified Resource Name (URN) of the object. （从 SqlSmoObject 继承。）
	IAlienObject.SetObjectState	Sets the object state to the specified SfcObjectState value. （从 SqlSmoObject 继承。）
	IAlienObject.SetPropertyValue	Sets the property value. （从 SqlSmoObject 继承。）
	ISfcPropertyProvider.GetPropertySet	Gets the interface reference to the set of properties of this object. （从 SqlSmoObject 继承。）
	ISfcSupportsDesignMode.IsDesignMode	Gets a Boolean value that indicates whether the object supports design mode. 标识为仅供参考。不提供支持。不保证以后的兼容性。

页首

注释

To get Login object properties, users can be a member of the public fixed server role.

To set Login object properties, users must have ALTER ANY LOGIN permissions on the server or be a member of the sysadmin fixed server role.

To create or drop a login, users must have ALTER ANY LOGIN permissions on the server or be a member of the sysadmin fixed server role.

To grant, deny, or revoke permission on the login to other users, users must have CONTROL permissions on the logon or be a member of the sysadmin or securityadmin fixed server roles.

To set the password on a login without providing an old password, users must be a member of the sysadmin fixed server role.

Thread Safety

此类型的任何公共静态（Microsoft Visual Basic 中的 Shared）成员在多线程操作中是安全的。但不保证所有实例成员都是线程安全的。

示例

管理用户、角色和登录名

线程安全

此类型的任何公共 static（在 Visual Basic 中为 Shared） 成员都是线程安全的。不保证所有实例成员都是线程安全的。

请参阅

参考

Microsoft.SqlServer.Management.Smo 命名空间

其他资源

主体（数据库引擎）

CREATE LOGIN (Transact-SQL)